<template>
  <div class="wrapper">

    <!-- header部分 -->
    <header>
      <p>商家列表</p>
    </header>
    <!-- 商家列表部分 -->
    <ul class="business">
      <li v-for="item in businessArr" @click="toBusinessInfo(item.businessId)">
        <div class="business-img">
          <img :src="item.businessImg">
          <div class="business-img-quantity" v-show="item.quantity>0">
            {{item.quantity}}</div>
        </div>
        <div class="business-info">
          <h3>{{item.businessName}}</h3>
          <p>&#165;{{item.starPrice}}起送 | &#165;{{item.deliveryPrice}}配送</p>
          <p>{{item.businessExplain}}</p>
        </div>
      </li>
    </ul>
    <!-- 底部菜单部分 -->
    <Footer></Footer>
  </div>
</template>
<script>
import Footer from '@/views/Footer.vue';
export default{
  name:'BusinessList',
  data(){
    return {
      orderTypeId: this.$route.query.orderTypeId,
      businessArr:[],
      user:{}
    }
  },
  created() {
    this.user = this.$getSessionStorage('user');
    //根据orderTypeId查询商家信息
    this.$axios.post('BusinessController/listBusinessByOrderTypeId',this.$qs.stringify({
      orderTypeId:this.orderTypeId
    })).then(response=>{
      this.businessArr = response.data;
      //判断是否登录
      if(this.user!=null){
        this.listCart();
      }
    }).catch(error=>{
      console.error(error);
    });
  },
  components:{
    Footer
  },
  methods: {
    listCart() {
      // 从 localStorage 中获取 Token（如果是 Vuex，替换为 this.$store.state.token）
      const token = localStorage.getItem('token');

      // 发送请求
      this.$axios.post(
          'CartController/listCart',
          this.$qs.stringify({ userId: this.user.userId }), // 请求体
          {
            headers: {
              Authorization: `Bearer ${token}`, // 请求头
              'Content-Type': 'application/x-www-form-urlencoded',
            },
            withCredentials: true, // 确保支持跨域发送凭据（Cookie 或 Authorization）
          }
      )
          .then(response => {
            let cartArr = response.data;
            // 遍历所有食品列表
            for (let businessItem of this.businessArr) {
              businessItem.quantity = 0;
              for (let cartItem of cartArr) {
                if (cartItem.businessId === businessItem.businessId) {
                  businessItem.quantity += cartItem.quantity;
                }
              }
            }
            this.businessArr.sort(); // 排序
          })
          .catch(error => {
            if (error.response && error.response.status === 401) {
              console.error('未授权，请登录:', error);
              // 可跳转到登录页
              this.$router.push('/login');
            } else {
              console.error('请求失败:', error);
            }
          });
    },
    toBusinessInfo(businessId){
      this.$router.push({path:'/businessInfo',query:{businessId:businessId}});
    }
  }
}
</script>
<style scoped>
/****************** 总容器 ******************/
.wrapper {
  width: 100%;
  height: 100%;
}
/****************** header部分 ******************/
.wrapper header {
  width: 100%;
  height: 12vw;
  background-color: #0097FF;
  color: #fff;
  font-size: 4.8vw;
  position: fixed;
  left: 0;
  top: 0;
  z-index: 1000;
  display: flex;
  justify-content: center;
  align-items: center;
}
/****************** 商家列表部分 ******************/
.wrapper .business {
  width: 100%;
  margin-top: 12vw;
  margin-bottom: 14vw;
}
.wrapper .business li {
  width: 100%;
  box-sizing: border-box;
  padding: 2.5vw;
  border-bottom: solid 1px #DDD;
  user-select: none;
  cursor: pointer;
  display: flex;
  align-items: center;
}
.wrapper .business li .business-img {
  /*这里设置为相当定位，成为business-img-quantity元素的父元素*/
  position: relative;
}
.wrapper .business li .business-img img {
  width: 20vw;
  height: 20vw;
}
.wrapper .business li .business-img .business-img-quantity {
  width: 5vw;
  height: 5vw;
  background-color: red;
  color: #fff;
  font-size: 3.6vw;
  border-radius: 2.5vw;
  display: flex;
  justify-content: center;
  align-items: center;
  /*设置成绝对定位，不占文档流空间*/
  position: absolute;
  right: -1.5vw;
  top: -1.5vw;
}
.wrapper .business li .business-info {
  margin-left: 3vw;
}
.wrapper .business li .business-info h3 {
  font-size: 3.8vw;
  color: #555;
}
.wrapper .business li .business-info p {
  font-size: 3vw;
  color: #888;
  margin-top: 2vw;
}
</style>